Home / 77,829.39-116,852.22-54,081

Finding the Fourth Proportional to 77,829.39, 116,852.22 and 54,081

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Solution

The fourth proportional to 77,829.39, 116,852.22 and 54,081 is: 81,196.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,829.39 : 116,852.22 = 54,081 : x
  2. Step 2: Convert to fraction form
    77,829.39/116,852.22 = 54,081/x
  3. Step 3: Cross multiply
    77,829.39x = 116,852.22 × 54,081
  4. Step 4: Simplify right side
    77,829.39x = 6,319,484,909.82
  5. Step 5: Solve for x
    x = 6,319,484,909.82/77,829.39
  6. Step 6: Final answer
    x = 81,196.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.